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Data Mining Based Integrated Electric-Gas Energy System Multi-Objective Optimization
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作者 zhukui tan Yongjie Ren +3 位作者 Hua Li Weili Ren Xichao Zhou Ming Zeng 《Energy Engineering》 EI 2022年第6期2607-2619,共13页
With the proposal of carbon neutrality,how to improve the proportion of clean energy in energy consumption and reduce carbon dioxide emissions has become the important challenge for the traditional energy industry.Bas... With the proposal of carbon neutrality,how to improve the proportion of clean energy in energy consumption and reduce carbon dioxide emissions has become the important challenge for the traditional energy industry.Based on the idea of multi-energy complementarity,a typical integrated energy system consisting of electric system and gas system is constructed based on the application of power to gas(P2G)technology and gas turbine in this paper.Furthermore,a multi-objective optimization model with economic improvement,carbon emission reduction and peak-load shifting as objectives is proposed,and solved by BSO algorithm.Finally,a typical power-gas coupling system is selected as an example to verify the effectiveness of the model.The results showed that the proposed multi-objective optimization model based on BSO algorithm can better play the complementary characteristics of the electric and gas system,and significantly improve the comprehensive benefits of system operation. 展开更多
关键词 Integrated energy system BSO algorithm power-gas coupling system clean energy consumption
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一种逆阻型模块化多电平换流器的改进方案
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作者 谈竹奎 徐玉韬 +3 位作者 袁旭峰 肖永 吕黔苏 李思 《电力与能源进展》 2018年第3期121-130,共10页
本文针对一种逆阻型模块化多电平换流器(Reverse Blocking Modular Multilevel Converter, RB-MMC)提出了改进方案,在该方案下,RB-MMC拓扑无需增加任何辅助器件,只需要改变换流器的闭锁脉冲即可实现直流故障电流的自清除。同时,为了避免... 本文针对一种逆阻型模块化多电平换流器(Reverse Blocking Modular Multilevel Converter, RB-MMC)提出了改进方案,在该方案下,RB-MMC拓扑无需增加任何辅助器件,只需要改变换流器的闭锁脉冲即可实现直流故障电流的自清除。同时,为了避免MMC近端金属性短路故障时可能出现的交流断路器保护动作,提出了在换流器桥臂串入模块化电阻的方案。最后,基于PSCAD/EMTDC仿真验证了所提方案的正确性和有效性。 展开更多
关键词 逆阻型模块化多电平换流器 直流故障 改进方案 模块化电阻 故障清除
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Coordinated control for medium voltage DC distribution centers with flexibly interlinked multiple microgrids 被引量:9
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作者 Lei QIAO Xialin LI +4 位作者 Di HUANG Li GUO Yutao XU zhukui tan Chengshan WANG 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2019年第3期599-611,共13页
From flexible interconnection among feeders to hybrid alternating current(AC) and direct current(DC)distribution structures of future smart distribution systems medium-voltage DC distribution centers with flexibly int... From flexible interconnection among feeders to hybrid alternating current(AC) and direct current(DC)distribution structures of future smart distribution systems medium-voltage DC distribution centers with flexibly interlinked multiple microgrids(MGs) will have wide applications on the demand side. A generic coordinated control framework based on a distributed cooperation scheme is proposed for such DC centers, as opposed to centralized control structures. A novel unified control only using local measurements is proposed for these interlinking converters. During normal power disturbances, automatic coordinated power control and mutual support among sub-systems can be realized, thereby improving DC voltage and AC frequency stability to enable multiple MGs to be treated as a real unified cluster. Moreover, with this method, interlinking converters can realize seamless transition in power dispatching mode, common DC bus voltage control mode, and MG support mode without communication and control system switching. A simplified dynamic model has been developed to verify the proposed control strategy. This work is expected to provide a new solution for flexible interconnection and operational control of large-scale MG clusters. 展开更多
关键词 Medium-voltage direct current(DC) distribution CENTERS MULTIPLE microgrids(MGs) Flexible INTERCONNECTION COORDINATED control SEAMLESS transition
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